水稻条纹叶枯病暴发原因分析与综合防治技术

条纹叶枯病连年暴发,已成为当前水稻生产上非常严重的问题。为此,详细分析了近年来水稻条纹叶枯病危害加重的原因,其中包括:耕作制度和栽培方式的改变,有利于传毒介体灰飞虱繁衍;冬季气候偏暖,有利于灰飞虱的越冬,造成虫口基数偏大;生产上推广的水稻品种抗病性较差;缺乏有效的防治药剂等。结合河南省生产实际,提出了以选用抗病品种、适期推迟播种、平衡施肥、除草和治虫防病为主的综合防治对策

Causation Analysis on Outbreak and the Integrated Control Technique of Rice Stripe Virus

Rice stripe virus is a very serious problem in rice production at present.The outbreak causation of rice stripe virus in recent years is that change of cultivation way benefit the reproduction of Laodelphax striatellus,the warm winter adapt to the overwintering and the accumulation of Laodelphax striatellus,and the resistance of variety is lower and the anti virals are less.Selection resistant variety, postpone of planting and transplanting period,balanced fertilization and control Laodelphax striatellus and weeds, can effectively control the occurrence of rice stripe.